Elevator attachment



4 SheetS S'heefi 11 (No Model.)

H. MATTULLATH. ELEVATOR ATTACHMENT.

No. 590,667. Patented Sept; 28, 1897.

' jig/J.

v (No Model.) 4 Sheets-Sheet 2.

H. MATTULLATH.

ELEVATOR ATTACHMENT.

No. 590,667. Patented Sept 28,1897.

Iw/rmzior 4 Sheets'Sheet 3.

(No Model.)

H. MATTULLATH. ELEVATOR ATTACHMENT.

No. 590,667. Patented Sept. 28,1897.

fw/reu/ or v Hw ofWaWuJ/mf/v m: "ohms mas co, Pncnbufuu. NAsmuGTom o. c;

T (No Model.) I 4 Sheets----Sheet 4.

HJMATTULLATH, v ELEVATOR ATTACHMENT. T

No. 590,667; r Patented Sept. 28,1897.

JWM

THE Ncnms PETERS coi. Pupvc'xumou \vAsmNmomu c.

UNITED STATES ATENT FFICE.

HUGO MATTULLATH, OF NEIV'YORK, N. Y., ASSIGNOR TO THE ANDERSON SAFETYELEVATOR COMPANY, LIMITED, OF DETROIT, MICHIGAN.

ELEVATOR ATTAC H M ENT.

SPECIFICATION forming part of Letters Patent N 0. 590,667, datedSeptember 28, 1897.

Application filed February 8,1896. Renewed February 13, 1897. Serial No.623.318. (No mode...

To all whont it 77716! concern.- 1

Be it known that I, HUGO MATTULLATH, a citizen of the United States,residing at New York, in the county of New York and State of New York,have invented certain new and useful Improvements in ElevatorAttachments, of which the' following is a specification, reference beinghad therein to the acconr panying drawings.

IO This invention relates particularly to devices for automaticallyclosing the hatchopenings by means of two series of traveling platforms,one located above and one below the elevator-car and so arranged that asthe r 5 latter moves upward and downward it deposits the platforms ofone of the two series (the one in the wake of the elevator) in theopenings of the floors and picks up and carries with it the platforms ofthe other series.

The invention is designed to overcome the numerous dificulties whichhave been met with in the practical use of devices of this kind; and,stated in a general way, it consists in the peculiar and novelconstruction of the 2.5 platform-supporting devices on the car and inthe openings of the floors whereby said supporting devices cooperateautomatically in the manner stated, all as more fully hereinafterdescribed, and shown in the drawings.

Figure 1 is a vertical section substantially on line or or, Fig. 2,showing two hatchways in the floors of a building-provided with anordinary freight-elevator equipped with the hatchway-closing devices.Fig. 2 is a hori- 3 5 zontal section thereof on line y y, Fig. 1. 3 is avertical section similarto Fig. 1, except being taken in a plane atright angles thereto. Fig. 4. is a horizontal section similar to Fig. 2,with one of the traveling platforms inview in the hatch-opening. Fig. 5is a cross-scction on line .2 zin Fig. 4. Fig. 6 is a detached sideelevation of the latch, showing it as in use to support one of thetraveling platforms. Fig. '7 is a detached front elevation thereof. Fig.8 is a vertical central section thereof. Fig. 9 is a horizontal sectionof the latch on line a a, Fig. 6. Fig. 10 is a horizontal sectionthereof on line 2 2, Fig. 8. Fig. 11 is a sectional side elevation 5 ofthe device for counterbalancing the traveling platform. Fig. 12 is avertical section of Fig. 11 on line w 00'. Fig. 13 is a horizontalsection through one of the stops as on line y y in Fig. 5. Fig. let is asimilar section through a stop of slightlydifferentform. Fig. 15 is adetached elevation of one of the cablecarrying arms of the travelingplatform. Fig.

16 is a plan thereof. Fig. 17 is a detached perspective view of one ofthe supports by which the pipes are supported free to expand. Fig. 18 isa vertical section thereof on line U c, showing the same as in use.-Fig. 19 is a horizontal section online on in Fig. 18.

A is the platform of the car, B the topframe thereof, 0 thehoisting-cable, D the cornerposts of the shaft, E the guide-posts forthe car, and F the hatch-opening in the floors of the building, allarranged to operate in the usual manner.

G G G2 represent a lower series of traveling platforms for closing thehatch-openings when the car goes up, and g g g represent an upper seriesof traveling platforms for closing the hatch-openings when the cargoesdown. These platforms are constructed as follows Each consists of a mainframe made of light and strong tubular frame-bars a, connected by meansof corner-brackets b, which have tubular sleeves into which the ends ofthe frame-bars are secured.

The sleeves'of each bracket are united by angle-braces b, integrallycast therewith and forming the means of attachment for the diagonaltie-rods 19 which are hooked thereto at their outer ends, while theinner ends are secured to a ring 12 in the center of the frame, the endsof the rods being screw-threaded and held by means of screw-nuts topermit of prodncing suitable tension to make the frame rigid. c

The corner-brackets are further united by means of tie-rods c, which areparallel with the frame-bars. Their ends are hooked into the angle-barsb, and each has a turnbuckle c for tightening it. Upon this frame as afoundation cross tie-rods d, having turnbuckles cl, are stretched atintervals between the tie-rods cand supporta fireproof covering 6 ofasbestos sheet or any other suitable material.

Each corner-bracket is formed with vertical sockets b for the receptionof a rubber buffer 71 on opposite sides of the platform.

Upon two opposite sides of each platform IOO when the ear descends, andthey are removed from the openings and carried upon top of the car whenthe car ascends. The series G G or lower series are designed to closethe openings when the car ascends, and when the car descends they areremoved from the openings and carried down underneath the platform ofthe car. To this end the lower series of platforms are carried bycounterweights each secured to a cable passing over pulleys in thefollowing manner: Upon two opposite sides, near the corners of eachplatform, are secured brackets f, as shown in Figs. 4:, 15, and 16.These brackets are formed with clampingrings f, having clamping-screws ffor attachment to the bars a, and they are so secured in the differentplatforms as to move in different vertical paths. Each bracket isprovided with a rubber buffer f and to the free end is secured the cablef which passes over a pulley h and carries a counterweight h, as shownin Figs. 11 and 12. The counterweight is cylindrical and has an elasticconnection with the cable. It runs in a tubular guideway i, composed ofsections of pipe and terminating at its upper end in a casing i, whichincloses the pulley 7'1. and guide-pulley 702.

The tubular gnideway is made in sections for the purpose of providingfor the expansion and contraction of the iron tubing, and the sectionsare held in position by means of guide-plates II, securedin thehatch-openin gs in the floors. These guide-plates have segmentalcircular guide-bearings H, provided with shoulders H for supporting thesections of pipe above, while the end of the section below has a freeplay in the guide-bea'irings. The sections of pipe are retained in theguidebearings by means of sheet-metal bands H secured to theguide-plates flush with the pipes. In this manner each of the lowerplatforms is carried by four counterweights in such a manner that if theear ascends the counterweights compel the platform to follow it up untilit is automatically stopped at its prescribed place. This isaccomplished by the brackets f (to which the cables are attached) comingin contact with fixed stops j. (See Figs. 3, 5, and 13.) These brackets,as will be seen, are so arranged that they project into the intersticesbetween the vertical pipes, which interstices are expressly provided forthe purpose of forming separate guideways for these brackets and therebykeep each platform in its prescribed path while being carried up or downand also guard the brackets and cable from being interfered with andthereby prevent injury to the parts.

The stops j are provided with elastic buffers j, corresponding to thebuffers on the brackets f, and the stops themselves act as cross-bracesfor the vertical pipes by being secured to the two pipes adjacent to theinterstices in which the bracket which cooperates with the stop isguided. The additional interstices for guiding the brackets of thelowest plat-form are obtained by means of the angle-bar I, placedcontiguous to the corners, and the stops used in connection with thebrackets guided in the interstices thus formed are suitably modified, asshown in Fig. 1-iin horizontal section.

The angle-bars I are primarily for the p urpose of guiding all theplatforms in their vertical movement. They extend from the bottom to thetop and are at intervals united with the vertical pipes by suitablecrossbraces. For the purpose of guiding the platforms the latter areprovided with guiderollers J, journaled between lugs cast on thecorner-iron b, all so arranged that the vibrations or the swaying of thecar in its movements cannot swerve the platforms out of their prescribed"ertical path.

For supporting the traveling platforms in the hatch-openingsautomatically-operating latches K, as represented in Figs. 6 to 10, areplaced in the openings. There are four shown in each hatch-opening, allbeing alike and each composed of a latch-bar 7r, pivotally secured atits lower end by a pivot-pin 7c in an outer casing and provided with anactuating-spring 70 The latch-bar operates in a vertical plane, and uponits face it is provided with the camshaped portion 7a and with theshoulder 7t, formed below it, which latter is preferably provided with aseat of rubber k hen the latch-bar is depressed, it is entirelyconcealed within the casing,and in this position it should be preferablyslightly inclined from the vertical enough to impart to it a tendency tofall outward by the action of its gravity and thus permit the use of avery light spring or dispense with its use altogether. In its normalposition the latch-bar projects from the easing sufficient to expose thecam-shaped portion k thereof and the shoulder 7t beyond the verticalinner edge of the casing, and to retain the latch-bar adjustably in thisposition a stud 70 is secured to it, which projects rearwardly through aslot 70 in the casing and is provided with the adjusting-nuts 7,5",which stop the latch-bar. The casing is provided with an enlargement 7.2to inclose this stud and also form a shoulder 71;, on which the casingis supported upon the edge of the curbing around the hatch-opening, inwhich it is secured by means of the lateral flange 7e formed on the sideof the casing.

To operate in connection with these latches,

the traveling platforms are provided with projecting arms or, as shownin the drawings, with rollers M, journaled between ears M, formed on thecorner-iron b, all so arranged that the platforms are adapted to besupported in position in the hatch-openings by resting with the rollersM upon the shoulder k of the latches in the hatch-openings.

To operate in connection with the latches, the elevator-car is providedon the sides of its platform and in line with the latches withprojections N, (see Fig. 2,) preferably of the character of aleather-covered pad which is adapted to press the latch-bars back intotheir casing when the car passes up'and down.

The parts being constructed as shown and described, they are intended tooperate as follows: Vhen the elevator-car is at its topmost position inthe building, the hatchways are closed by the platforms composing thelower series, while the platforms of the upper series are supported ontop of the car. If the car now descends, (supposing for the present thelower platforms to be removed,) it will be seen that the projectingrollers M of the lowermost platform on top of the car strike thecam-faces Win the uppermost hatch-opening an d press the latch-bars backinto the casing, while the rollers M of the next succeeding platformwill keep it there, thus permitting the free passage of all theplatforms except the topmost one, which is kept upon the shoulder K andremains in place in the hatchopening, and in this manner one travelingplatform after the other will be arrested in the hatch-openings andclose them in succession as the car progresses downward in its travel.At the same time while the car is descending, the lower series oftraveling platforms which were supported in the hatchopenings areremoved, owing to the action of the pads N on the platform of the car.These pads at the outset first unlatch the topmost platform of the lowerseries by pressing upon the cam-faces of the latches. Then inturn thetopmost platform in being carried down by the car will unlatch in thesame manner the platform next below and so on successively, and when thecar is then in its lowermost position all the platforms of the lowerseries are collected below the platform of .the car. If the elevator-carnow ascends, the platforms will follow, owing to their being carried bythe counterweights, and each platform will go as high as the stops jpermit it to go, the arrangement of such stops being such that thelowermost platform is first arrested and the others in succession. Assoon as each platform of the lower series is carried to its properposition, the further upward movement of the car frees the latch-barsand the latter will then engage with the rollers M and positivelysupport the platforms in the opening. v

I am perfectly aware that the principle of closing hatchways by means oftraveling platforms is not broadly new, but the practical applicationhas met with many difficulties which I believe are overcome in myapparatus, which is new.

Vhat I claim as my invention is 1. The combination with the carof anelevator, a series of traveling platforms located below the car, andindependent cables and counterweights for each platform secured tobrackets on said platform, of tubular guide- Ways in which thecounterweights are inclosed and sheaves supported on top thereof, saidtubular guideways being supported within the hatch-opening in proximityto opposite sides of the car, and grouped in relationto the brackets'toform interstices for the brackets and cables, substantially asdescribed.

2. The combination with the car of an elevator, a series of platformsand counterweights attached to cables forsupportin g the platform intraveling contact below the car, of tubular guideways inclosing thecounterweights and carrying the sheaves for the cables on top thereof,brackets on the platforms projecting into the interstices between theguideways and having the cables attached thereto, and stops for thebrackets at the hatch-openin gs, substantially as described.

3. The combination with the car of an elevator, a series of platformsand counterweights attached to cables for supporting the platforms intraveling contact below the car, of a vertical guideway for eachcounterweight provided on top with a sheave for the cable of thecounterweight, said guideway being made of sections of pipeindependently supported to provide for expansion and contraction,substantially as described.

4. The combination with the car of an elevator, a series of platformsand counterweights attached to cables for supporting the platformsintraveling contact below the car, of brackets on the platforms to whichthe cables are attached, guideways inclosing the counterweights andarranged in groups with the brackets on opposite sidesof the car to formsuitable interstices for guiding the brackets, and a sheave for eachcable inclosed in a casing-connected to the top of each guideway,substantially as described.

5. The combination with the car of an elevator, a series of platformsand counterweights attached to cables, passing over sheaves forsupporting the platforms in traveling contact with the under side of thecar, of brackets on the platforms to which said cables are attached,vertical guideways inclosin g the counterweights and arranged in groupswith said brackets 011 opposite 'sides of the platform near the cornersthereof to form interstices for the brackets and cables, stops for thebrackets, secured to the guideways, and cooperating elastic l iu'iferson the brackets and stops, substantially as described.

6. The combination with the car of an elevator, a series of platformsand counterweights attached to cables passing over sheaves forsupporting the platforms in traveling contact with the underside of thecar, of brackets on the platforms carrying the cables, stops located inthe hatch-openings to cooperate with said brackets, latches located inthe hatchopenings and adapted to engage with and support one of theplatforms and projections on the platforms and car cooperating with thelatches to automatically latch and unlatch the platforms, substantiallyas described.

7. The combination with the car, of a series of platforms supported intraveling contact with the under side of the car and provided withbrackets,stops located in thel1atcl1-openings to cooperate with thebrackets, latches located in the hatch-openings, each provided with asupporting-shoulder and a cam-shaped projection on the face of thelatch-bar and rollers journaled between projecting lugs 011- thetraveling platforms adapted to cooperate with said latch-bars to latchand unlatch the platforms in the movement of the car.

8. The combination with the car, of a series of platforms supported ontop of the car, and a like series of platforms below the car, andcables, sheaves and counterweights supporting them in traveling contactwith the car, of vertical guide-rails for said platforms located nearthe corners within the elevatorshaft, guide-rollers on the platformsengaging upon said guide-rails and guiding the platforms independentlyof the car, latches located in the hatch-openings and provided with asupporting-shoulder and a cam-face projection above said shoulder, androllers on the platforms adapted to cooperate with said latches,substantially as described.

9. The combination with the elevator-car, of the platform below thesame, the supporting-latches for one of said platforms at each floorhaving pivoted latch-bars formed with a supporting-shoulder and inclinedfaces above andbelowthesame,antifriction-rollerscarried between ears onthe sides of the platforms in line with the latch-bars and adapted tocooperate therewith to latch and unlatch the platforms in the movementof the car and corresponding projections as N in the sides of theplatform of the car, substantially as described.

10. The combination with the elevator-car, of the platforms,counterweights attached to cables for carrying the platforms below thecar, brackets secured upon opposite sides of the platforms and attachedto the cables, guideways inclosing the counterweights and formingbetween them guideways for said brackets, means in the space between theelevator-hatchway and the car and forming supports for the platforms,and stops for said brackets secured to the guideways to formcross-braces for the same, substantially as described.

11. The combination with the elevator-car of the platforms below thecar, counterweights for holding the platforms in traveling contact withthe car and the tubular guideways extending through the openings in thefloors and supporting-sheaves for the cables and inclosin g theeounterweights, substantially as described.

12. The combination with the car, of a platform below the car, cablesattached to the platform and carrying counterweights, tubular guideways,supported in the hatchways and inclosing the counterweights and thecasing t" on top of each guideway and provided with the sheave h andguide-pulley 7L2 inclosed in said casing, substantially as described.

13. The combination with the car and a traveling platform below the car,of the cables f attached to the platforms, the tubular guideways 2'supported in sections within the hatchways and provided with sheaves hand guide-pulleys 77/2 for the cables, and the counterweights L inclosedin said guideways and elastically connected to the cables, substantiallyas described.

14. The combination with the car and the platforms carried by the car ofsupportinglatches therefor in the hatchways, each con sisting of acasing 7.0 having means for sup porting it in the hatch-opening, apivoted latch-bar 7t, and actuating-spring and a stud 70 provided withthe adj Listing-nut in the free end of the latch-bar, substantially asdescribed.

In testimony whereof I affix my signature in presence of two witnesses.

HUGO MAT ULLATII.

\Vi tnesses:

M. B. ODOGHERTY, O. F. BARTHEL.

